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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
commitf4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch)
tree2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/extras/drm/linux/drm_drv.h
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository
Diffstat (limited to 'nx-X11/extras/drm/linux/drm_drv.h')
-rw-r--r--nx-X11/extras/drm/linux/drm_drv.h1127
1 files changed, 1127 insertions, 0 deletions
diff --git a/nx-X11/extras/drm/linux/drm_drv.h b/nx-X11/extras/drm/linux/drm_drv.h
new file mode 100644
index 000000000..7bb87726c
--- /dev/null
+++ b/nx-X11/extras/drm/linux/drm_drv.h
@@ -0,0 +1,1127 @@
+/**
+ * \file drm_drv.h
+ * Generic driver template
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ *
+ * To use this template, you must at least define the following (samples
+ * given for the MGA driver):
+ *
+ * \code
+ * #define DRIVER_AUTHOR "VA Linux Systems, Inc."
+ *
+ * #define DRIVER_NAME "mga"
+ * #define DRIVER_DESC "Matrox G200/G400"
+ * #define DRIVER_DATE "20001127"
+ *
+ * #define DRIVER_MAJOR 2
+ * #define DRIVER_MINOR 0
+ * #define DRIVER_PATCHLEVEL 2
+ *
+ * #define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( mga_ioctls )
+ *
+ * #define DRM(x) mga_##x
+ * \endcode
+ */
+
+/*
+ * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
+ *
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef DRIVER_IOCTLS
+#define DRIVER_IOCTLS
+#endif
+
+static void __exit drm_cleanup( drm_device_t *dev );
+
+#ifndef MODULE
+/** Use an additional macro to avoid preprocessor troubles */
+#define DRM_OPTIONS_FUNC DRM(options)
+/**
+ * Called by the kernel to parse command-line options passed via the
+ * boot-loader (e.g., LILO). It calls the insmod option routine,
+ * parse_options().
+ */
+static int __init DRM(options)( char *str )
+{
+ DRM(parse_options)( str );
+ return 1;
+}
+
+__setup( DRIVER_NAME "=", DRM_OPTIONS_FUNC );
+#undef DRM_OPTIONS_FUNC
+#endif
+
+int DRM(fb_loaded) = 0;
+
+struct file_operations DRM(fops) = {
+ .owner = THIS_MODULE,
+ .open = DRM(open),
+ .flush = DRM(flush),
+ .release = DRM(release),
+ .ioctl = DRM(ioctl),
+ .mmap = DRM(mmap),
+ .fasync = DRM(fasync),
+ .poll = DRM(poll),
+ .read = DRM(read),
+};
+
+/** Ioctl table */
+drm_ioctl_desc_t DRM(ioctls)[] = {
+ [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { DRM(version), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { DRM(getunique), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { DRM(getmagic), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { DRM(irq_by_busid), 0, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP)] = { DRM(getmap), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT)] = { DRM(getclient), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)] = { DRM(getstats), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_SET_VERSION)] = { DRM(setversion), 0, 1 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { DRM(setunique), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { DRM(noop), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { DRM(noop), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { DRM(authmagic), 1, 1 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { DRM(addmap), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)] = { DRM(rmmap), 1, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = { DRM(setsareactx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = { DRM(getsareactx), 1, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { DRM(addctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { DRM(rmctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { DRM(modctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { DRM(getctx), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { DRM(switchctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { DRM(newctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { DRM(resctx), 1, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { DRM(adddraw), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { DRM(rmdraw), 1, 1 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { DRM(lock), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { DRM(unlock), 1, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { DRM(noop), 1, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { DRM(addbufs), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { DRM(markbufs), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { DRM(infobufs), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { DRM(mapbufs), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { DRM(freebufs), 1, 0 },
+ /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */
+
+ [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { DRM(control), 1, 1 },
+
+#if __OS_HAS_AGP
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = { DRM(agp_acquire), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = { DRM(agp_release), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = { DRM(agp_enable), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = { DRM(agp_info), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = { DRM(agp_alloc), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = { DRM(agp_free), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = { DRM(agp_bind), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = { DRM(agp_unbind), 1, 1 },
+#endif
+
+ [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)] = { DRM(sg_alloc), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)] = { DRM(sg_free), 1, 1 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK)] = { DRM(wait_vblank), 0, 0 },
+
+ DRIVER_IOCTLS
+};
+
+#define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( DRM(ioctls) )
+
+static int DRM(setup)( drm_device_t *dev )
+{
+ int i;
+
+ if (dev->fn_tbl.presetup)
+ dev->fn_tbl.presetup(dev);
+
+ atomic_set( &dev->ioctl_count, 0 );
+ atomic_set( &dev->vma_count, 0 );
+ dev->buf_use = 0;
+ atomic_set( &dev->buf_alloc, 0 );
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ {
+ i = DRM(dma_setup)( dev );
+ if ( i < 0 )
+ return i;
+ }
+
+ for ( i = 0 ; i < DRM_ARRAY_SIZE(dev->counts) ; i++ )
+ atomic_set( &dev->counts[i], 0 );
+
+ for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) {
+ dev->magiclist[i].head = NULL;
+ dev->magiclist[i].tail = NULL;
+ }
+
+ dev->ctxlist = DRM(alloc)(sizeof(*dev->ctxlist),
+ DRM_MEM_CTXLIST);
+ if(dev->ctxlist == NULL) return -ENOMEM;
+ memset(dev->ctxlist, 0, sizeof(*dev->ctxlist));
+ INIT_LIST_HEAD(&dev->ctxlist->head);
+
+ dev->vmalist = NULL;
+ dev->sigdata.lock = dev->lock.hw_lock = NULL;
+ init_waitqueue_head( &dev->lock.lock_queue );
+ dev->queue_count = 0;
+ dev->queue_reserved = 0;
+ dev->queue_slots = 0;
+ dev->queuelist = NULL;
+ dev->irq_enabled = 0;
+ dev->context_flag = 0;
+ dev->interrupt_flag = 0;
+ dev->dma_flag = 0;
+ dev->last_context = 0;
+ dev->last_switch = 0;
+ dev->last_checked = 0;
+ init_waitqueue_head( &dev->context_wait );
+ dev->if_version = 0;
+
+ dev->ctx_start = 0;
+ dev->lck_start = 0;
+
+ dev->buf_rp = dev->buf;
+ dev->buf_wp = dev->buf;
+ dev->buf_end = dev->buf + DRM_BSZ;
+ dev->buf_async = NULL;
+ init_waitqueue_head( &dev->buf_readers );
+ init_waitqueue_head( &dev->buf_writers );
+
+ DRM_DEBUG( "\n" );
+
+ /*
+ * The kernel's context could be created here, but is now created
+ * in drm_dma_enqueue. This is more resource-efficient for
+ * hardware that does not do DMA, but may mean that
+ * drm_select_queue fails between the time the interrupt is
+ * initialized and the time the queues are initialized.
+ */
+ if (dev->fn_tbl.postsetup)
+ dev->fn_tbl.postsetup(dev);
+
+ return 0;
+}
+
+
+/**
+ * Take down the DRM device.
+ *
+ * \param dev DRM device structure.
+ *
+ * Frees every resource in \p dev.
+ *
+ * \sa drm_device and setup().
+ */
+static int DRM(takedown)( drm_device_t *dev )
+{
+ drm_magic_entry_t *pt, *next;
+ drm_map_t *map;
+ drm_map_list_t *r_list;
+ struct list_head *list, *list_next;
+ drm_vma_entry_t *vma, *vma_next;
+ int i;
+
+ DRM_DEBUG( "\n" );
+
+ if (dev->fn_tbl.pretakedown)
+ dev->fn_tbl.pretakedown(dev);
+
+ if ( dev->irq_enabled ) DRM(irq_uninstall)( dev );
+
+ down( &dev->struct_sem );
+ del_timer( &dev->timer );
+
+ if ( dev->devname ) {
+ DRM(free)( dev->devname, strlen( dev->devname ) + 1,
+ DRM_MEM_DRIVER );
+ dev->devname = NULL;
+ }
+
+ if ( dev->unique ) {
+ DRM(free)( dev->unique, strlen( dev->unique ) + 1,
+ DRM_MEM_DRIVER );
+ dev->unique = NULL;
+ dev->unique_len = 0;
+ }
+ /* Clear pid list */
+ for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) {
+ for ( pt = dev->magiclist[i].head ; pt ; pt = next ) {
+ next = pt->next;
+ DRM(free)( pt, sizeof(*pt), DRM_MEM_MAGIC );
+ }
+ dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
+ }
+
+ /* Clear AGP information */
+ if (drm_core_has_AGP(dev) && dev->agp) {
+ drm_agp_mem_t *entry;
+ drm_agp_mem_t *nexte;
+
+ /* Remove AGP resources, but leave dev->agp
+ intact until drv_cleanup is called. */
+ for ( entry = dev->agp->memory ; entry ; entry = nexte ) {
+ nexte = entry->next;
+ if ( entry->bound ) DRM(unbind_agp)( entry->memory );
+ DRM(free_agp)( entry->memory, entry->pages );
+ DRM(free)( entry, sizeof(*entry), DRM_MEM_AGPLISTS );
+ }
+ dev->agp->memory = NULL;
+
+ if ( dev->agp->acquired ) DRM(agp_do_release)();
+
+ dev->agp->acquired = 0;
+ dev->agp->enabled = 0;
+ }
+
+ /* Clear vma list (only built for debugging) */
+ if ( dev->vmalist ) {
+ for ( vma = dev->vmalist ; vma ; vma = vma_next ) {
+ vma_next = vma->next;
+ DRM(free)( vma, sizeof(*vma), DRM_MEM_VMAS );
+ }
+ dev->vmalist = NULL;
+ }
+
+ if( dev->maplist ) {
+ list_for_each_safe( list, list_next, &dev->maplist->head ) {
+ r_list = (drm_map_list_t *)list;
+
+ if ( ( map = r_list->map ) ) {
+ switch ( map->type ) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+ continue;
+
+ case _DRM_SHM:
+ vfree(map->handle);
+ break;
+
+ case _DRM_AGP:
+ /* Do nothing here, because this is all
+ * handled in the AGP/GART driver.
+ */
+ break;
+ case _DRM_SCATTER_GATHER:
+ /* Handle it */
+ if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg) {
+ DRM(sg_cleanup)(dev->sg);
+ dev->sg = NULL;
+ }
+ break;
+ }
+ DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
+ }
+ list_del( list );
+ DRM(free)(r_list, sizeof(*r_list), DRM_MEM_MAPS);
+ }
+ }
+
+
+ if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) {
+ for ( i = 0 ; i < dev->queue_count ; i++ ) {
+
+ if ( dev->queuelist[i] ) {
+ DRM(free)( dev->queuelist[i],
+ sizeof(*dev->queuelist[0]),
+ DRM_MEM_QUEUES );
+ dev->queuelist[i] = NULL;
+ }
+ }
+ DRM(free)( dev->queuelist,
+ dev->queue_slots * sizeof(*dev->queuelist),
+ DRM_MEM_QUEUES );
+ dev->queuelist = NULL;
+ }
+ dev->queue_count = 0;
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ DRM(dma_takedown)( dev );
+
+ if ( dev->lock.hw_lock ) {
+ dev->sigdata.lock = dev->lock.hw_lock = NULL; /* SHM removed */
+ dev->lock.filp = NULL;
+ wake_up_interruptible( &dev->lock.lock_queue );
+ }
+ up( &dev->struct_sem );
+
+ return 0;
+}
+
+static void DRM(init_fn_table)(struct drm_device *dev)
+{
+ dev->fn_tbl.reclaim_buffers = DRM(core_reclaim_buffers);
+ dev->fn_tbl.get_map_ofs = DRM(core_get_map_ofs);
+ dev->fn_tbl.get_reg_ofs = DRM(core_get_reg_ofs);
+}
+
+#include "drm_pciids.h"
+
+static struct pci_device_id DRM(pciidlist)[] = {
+ DRM(PCI_IDS)
+};
+
+int DRM(fill_in_dev)(drm_device_t *dev, struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ int retcode;
+
+ spin_lock_init(&dev->count_lock);
+ init_timer( &dev->timer );
+ sema_init( &dev->struct_sem, 1 );
+ sema_init( &dev->ctxlist_sem, 1 );
+
+ dev->name = DRIVER_NAME;
+ dev->fops = &DRM(fops);
+ dev->pdev = pdev;
+
+#ifdef __alpha__
+ dev->hose = pdev->sysdata;
+ dev->pci_domain = dev->hose->bus->number;
+#else
+ dev->pci_domain = 0;
+#endif
+ dev->pci_bus = pdev->bus->number;
+ dev->pci_slot = PCI_SLOT(pdev->devfn);
+ dev->pci_func = PCI_FUNC(pdev->devfn);
+ dev->irq = pdev->irq;
+
+ dev->maplist = DRM(calloc)(1, sizeof(*dev->maplist), DRM_MEM_MAPS);
+ if(dev->maplist == NULL) return -ENOMEM;
+ INIT_LIST_HEAD(&dev->maplist->head);
+
+ /* dev_priv_size can be changed by a driver in driver_register_fns */
+ dev->dev_priv_size = sizeof(u32);
+
+ /* the DRM has 6 counters */
+ dev->counters = 6;
+ dev->types[0] = _DRM_STAT_LOCK;
+ dev->types[1] = _DRM_STAT_OPENS;
+ dev->types[2] = _DRM_STAT_CLOSES;
+ dev->types[3] = _DRM_STAT_IOCTLS;
+ dev->types[4] = _DRM_STAT_LOCKS;
+ dev->types[5] = _DRM_STAT_UNLOCKS;
+
+ DRM(init_fn_table)(dev);
+
+ DRM(driver_register_fns)(dev);
+
+ if (dev->fn_tbl.preinit)
+ if ((retcode = dev->fn_tbl.preinit(dev, ent->driver_data)))
+ goto error_out_unreg;
+
+ if (drm_core_has_AGP(dev)) {
+ dev->agp = DRM(agp_init)();
+ if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) && (dev->agp == NULL)) {
+ DRM_ERROR( "Cannot initialize the agpgart module.\n" );
+ retcode = -EINVAL;
+ goto error_out_unreg;
+ }
+
+
+ if (drm_core_has_MTRR(dev)) {
+ if (dev->agp)
+ dev->agp->agp_mtrr = mtrr_add( dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size*1024*1024,
+ MTRR_TYPE_WRCOMB,
+ 1 );
+ }
+ }
+
+ retcode = DRM(ctxbitmap_init)( dev );
+ if( retcode ) {
+ DRM_ERROR( "Cannot allocate memory for context bitmap.\n" );
+ goto error_out_unreg;
+ }
+
+ dev->device = MKDEV(DRM_MAJOR, dev->minor );
+
+ DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d: %s\n",
+ DRIVER_NAME,
+ DRIVER_MAJOR,
+ DRIVER_MINOR,
+ DRIVER_PATCHLEVEL,
+ DRIVER_DATE,
+ dev->minor,
+ pci_pretty_name(pdev)
+ );
+
+ /* drivers add secondary heads here if needed */
+ if (dev->fn_tbl.postinit)
+ if ((retcode = dev->fn_tbl.postinit(dev, ent->driver_data)))
+ goto error_out_unreg;
+
+ return 0;
+
+ error_out_unreg:
+ DRM(takedown)(dev);
+ return retcode;
+}
+
+static void __exit drm_cleanup_pci(struct pci_dev *pdev)
+{
+ drm_device_t *dev = pci_get_drvdata(pdev);
+
+ pci_set_drvdata(pdev, NULL);
+ pci_release_regions(pdev);
+ if (dev)
+ drm_cleanup(dev);
+}
+
+static struct pci_driver drm_driver = {
+ .name = DRIVER_NAME,
+ .id_table = DRM(pciidlist),
+ .probe = DRM(probe),
+ .remove = __devexit_p(drm_cleanup_pci),
+};
+
+#ifdef MODULE
+static char *drm_opts = NULL;
+#endif
+MODULE_PARM( drm_opts, "s" );
+
+/**
+ * Module initialization. Called via init_module at module load time, or via
+ * linux/init/main.c (this is not currently supported).
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Initializes an array of drm_device structures, and attempts to
+ * initialize all available devices, using consecutive minors, registering the
+ * stubs and initializing the AGP device.
+ *
+ * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and
+ * after the initialization for driver customization.
+ */
+static int __init drm_init( void )
+{
+ struct pci_dev *pdev;
+ struct pci_device_id *pid;
+ int i;
+
+ DRM_DEBUG( "\n" );
+
+#ifdef MODULE
+ DRM(parse_options)( drm_opts );
+#endif
+
+ DRM(mem_init)();
+
+ for (i=0; (DRM(pciidlist)[i].vendor != 0) && !DRM(fb_loaded); i++) {
+ pid = &DRM(pciidlist[i]);
+
+ pdev = NULL;
+ /* pass back in pdev to account for multiple identical cards */
+ while ((pdev = pci_get_subsys(pid->vendor, pid->device, pid->subvendor, pid->subdevice, pdev))) {
+ /* is there already a driver loaded, or (short circuit saves work) */
+ /* does something like VesaFB have control of the memory region? */
+ if (pci_dev_driver(pdev) || pci_request_regions(pdev, "DRM scan")) {
+ /* go into stealth mode */
+ DRM(fb_loaded) = 1;
+ pci_dev_put(pdev);
+ break;
+ }
+ /* no fbdev or vesadev, put things back and wait for normal probe */
+ pci_release_regions(pdev);
+ }
+ }
+
+ if (DRM(fb_loaded) == 0)
+ pci_register_driver(&drm_driver);
+ else {
+ for (i=0; DRM(pciidlist)[i].vendor != 0; i++) {
+ pid = &DRM(pciidlist[i]);
+
+ pdev = NULL;
+ /* pass back in pdev to account for multiple identical cards */
+ while ((pdev = pci_get_subsys(pid->vendor, pid->device, pid->subvendor, pid->subdevice, pdev))) {
+ /* stealth mode requires a manual probe */
+ pci_dev_get(pdev);
+ DRM(probe)(pdev, &DRM(pciidlist[i]));
+ }
+ }
+ DRM_INFO("Used old pci detect: framebuffer loaded\n");
+ }
+ return 0;
+}
+
+/**
+ * Called via cleanup_module() at module unload time.
+ *
+ * Cleans up all DRM device, calling takedown().
+ *
+ * \sa drm_init().
+ */
+static void __exit drm_cleanup( drm_device_t *dev )
+{
+ drm_map_t *map;
+ drm_map_list_t *r_list;
+ struct list_head *list, *list_next;
+
+ DRM_DEBUG( "\n" );
+ if (!dev) {
+ DRM_ERROR("cleanup called no dev\n");
+ return;
+ }
+
+ DRM(takedown)(dev);
+
+ if( dev->maplist ) {
+ list_for_each_safe( list, list_next, &dev->maplist->head ) {
+ r_list = (drm_map_list_t *)list;
+
+ if ( ( map = r_list->map ) ) {
+ switch ( map->type ) {
+ case _DRM_REGISTERS:
+ DRM(ioremapfree)( map->handle, map->size, dev );
+ break;
+
+ case _DRM_FRAME_BUFFER:
+ if ( drm_core_has_MTRR(dev)) {
+ if ( map->mtrr >= 0 ) {
+ int retcode;
+ retcode = mtrr_del( map->mtrr,
+ map->offset,
+ map->size );
+ DRM_DEBUG( "mtrr_del=%d\n", retcode );
+ }
+ }
+ break;
+
+ case _DRM_SHM:
+ case _DRM_AGP:
+ case _DRM_SCATTER_GATHER:
+ DRM_DEBUG("Extra maplist item\n");
+ break;
+ }
+ DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
+ }
+ list_del( list );
+ DRM(free)(r_list, sizeof(*r_list), DRM_MEM_MAPS);
+ }
+ DRM(free)(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS);
+ dev->maplist = NULL;
+ }
+ if (DRM(fb_loaded)==0)
+ pci_disable_device(dev->pdev);
+
+ DRM(ctxbitmap_cleanup)( dev );
+
+ if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) && dev->agp && dev->agp->agp_mtrr >= 0) {
+ int retval;
+ retval = mtrr_del( dev->agp->agp_mtrr,
+ dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size*1024*1024 );
+ DRM_DEBUG( "mtrr_del=%d\n", retval );
+ }
+
+ if (drm_core_has_AGP(dev) && dev->agp ) {
+ DRM(agp_uninit)();
+ DRM(free)( dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS );
+ dev->agp = NULL;
+ }
+ if (dev->fn_tbl.postcleanup)
+ dev->fn_tbl.postcleanup(dev);
+
+ if ( DRM(put_minor)(dev) )
+ DRM_ERROR( "Cannot unload module\n" );
+}
+
+static void __exit drm_exit (void)
+{
+ int i;
+ drm_device_t *dev;
+ drm_minor_t *minor;
+
+ DRM_DEBUG( "\n" );
+ if (DRM(fb_loaded)) {
+ if (DRM(global)) {
+ for (i = 0; DRM(global) && (i < DRM(global)->cards_limit); i++) {
+ minor = &DRM(global)->minors[i];
+ dev = minor->dev;
+ DRM_DEBUG("fb loaded release minor %d\n", dev->minor);
+ if ((minor->class == DRM_MINOR_PRIMARY) && (dev->fops == &DRM(fops))) {
+ /* release the pci driver */
+ if (dev->pdev)
+ pci_dev_put(dev->pdev);
+ drm_cleanup(dev);
+ }
+ }
+ }
+ } else
+ pci_unregister_driver(&drm_driver);
+ DRM_INFO( "Module unloaded\n" );
+}
+
+
+module_init( drm_init );
+module_exit( drm_exit );
+
+
+/**
+ * Get version information
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_version structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Fills in the version information in \p arg.
+ */
+int DRM(version)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_version_t __user *argp = (void __user *)arg;
+ drm_version_t version;
+ int len;
+
+ if ( copy_from_user( &version, argp, sizeof(version) ) )
+ return -EFAULT;
+
+#define DRM_COPY( name, value ) \
+ len = strlen( value ); \
+ if ( len > name##_len ) len = name##_len; \
+ name##_len = strlen( value ); \
+ if ( len && name ) { \
+ if ( copy_to_user( name, value, len ) ) \
+ return -EFAULT; \
+ }
+
+ version.version_major = DRIVER_MAJOR;
+ version.version_minor = DRIVER_MINOR;
+ version.version_patchlevel = DRIVER_PATCHLEVEL;
+
+ DRM_COPY( version.name, DRIVER_NAME );
+ DRM_COPY( version.date, DRIVER_DATE );
+ DRM_COPY( version.desc, DRIVER_DESC );
+
+ if ( copy_to_user( argp, &version, sizeof(version) ) )
+ return -EFAULT;
+ return 0;
+}
+
+/**
+ * Open file.
+ *
+ * \param inode device inode
+ * \param filp file pointer.
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches the DRM device with the same minor number, calls open_helper(), and
+ * increments the device open count. If the open count was previous at zero,
+ * i.e., it's the first that the device is open, then calls setup().
+ */
+int DRM(open)( struct inode *inode, struct file *filp )
+{
+ drm_device_t *dev = NULL;
+ int minor = iminor(inode);
+ int retcode = 0;
+
+ if (!((minor >= 0) && (minor < DRM(global)->cards_limit)))
+ return -ENODEV;
+
+ dev = DRM(global)->minors[minor].dev;
+ if (!dev)
+ return -ENODEV;
+
+ retcode = DRM(open_helper)( inode, filp, dev );
+ if ( !retcode ) {
+ atomic_inc( &dev->counts[_DRM_STAT_OPENS] );
+ spin_lock( &dev->count_lock );
+ if ( !dev->open_count++ ) {
+ spin_unlock( &dev->count_lock );
+ return DRM(setup)( dev );
+ }
+ spin_unlock( &dev->count_lock );
+ }
+
+ return retcode;
+}
+
+/**
+ * Release file.
+ *
+ * \param inode device inode
+ * \param filp file pointer.
+ * \return zero on success or a negative number on failure.
+ *
+ * If the hardware lock is held then free it, and take it again for the kernel
+ * context since it's necessary to reclaim buffers. Unlink the file private
+ * data from its list and free it. Decreases the open count and if it reaches
+ * zero calls takedown().
+ */
+int DRM(release)( struct inode *inode, struct file *filp )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev;
+ int retcode = 0;
+
+ lock_kernel();
+ dev = priv->dev;
+
+ DRM_DEBUG( "open_count = %d\n", dev->open_count );
+
+ if (dev->fn_tbl.prerelease)
+ dev->fn_tbl.prerelease(dev, filp);
+
+ /* ========================================================
+ * Begin inline drm_release
+ */
+
+ DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n",
+ current->pid, (long)old_encode_dev(dev->device), dev->open_count );
+
+ if ( priv->lock_count && dev->lock.hw_lock &&
+ _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) &&
+ dev->lock.filp == filp ) {
+ DRM_DEBUG( "File %p released, freeing lock for context %d\n",
+ filp,
+ _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock) );
+
+ if (dev->fn_tbl.release)
+ dev->fn_tbl.release(dev, filp);
+
+ DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
+ _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock) );
+
+ /* FIXME: may require heavy-handed reset of
+ hardware at this point, possibly
+ processed via a callback to the X
+ server. */
+ }
+ else if ( dev->fn_tbl.release && priv->lock_count && dev->lock.hw_lock ) {
+ /* The lock is required to reclaim buffers */
+ DECLARE_WAITQUEUE( entry, current );
+
+ add_wait_queue( &dev->lock.lock_queue, &entry );
+ for (;;) {
+ current->state = TASK_INTERRUPTIBLE;
+ if ( !dev->lock.hw_lock ) {
+ /* Device has been unregistered */
+ retcode = -EINTR;
+ break;
+ }
+ if ( DRM(lock_take)( &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT ) ) {
+ dev->lock.filp = filp;
+ dev->lock.lock_time = jiffies;
+ atomic_inc( &dev->counts[_DRM_STAT_LOCKS] );
+ break; /* Got lock */
+ }
+ /* Contention */
+ schedule();
+ if ( signal_pending( current ) ) {
+ retcode = -ERESTARTSYS;
+ break;
+ }
+ }
+ current->state = TASK_RUNNING;
+ remove_wait_queue( &dev->lock.lock_queue, &entry );
+ if( !retcode ) {
+ if (dev->fn_tbl.release)
+ dev->fn_tbl.release(dev, filp);
+ DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT );
+ }
+ }
+
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA))
+ {
+ dev->fn_tbl.reclaim_buffers(dev, filp);
+ }
+
+ DRM(fasync)( -1, filp, 0 );
+
+ down( &dev->ctxlist_sem );
+ if ( !list_empty( &dev->ctxlist->head ) ) {
+ drm_ctx_list_t *pos, *n;
+
+ list_for_each_entry_safe( pos, n, &dev->ctxlist->head, head ) {
+ if ( pos->tag == priv &&
+ pos->handle != DRM_KERNEL_CONTEXT ) {
+ if (dev->fn_tbl.context_dtor)
+ dev->fn_tbl.context_dtor(dev, pos->handle);
+
+ DRM(ctxbitmap_free)( dev, pos->handle );
+
+ list_del( &pos->head );
+ DRM(free)( pos, sizeof(*pos), DRM_MEM_CTXLIST );
+ --dev->ctx_count;
+ }
+ }
+ }
+ up( &dev->ctxlist_sem );
+
+ down( &dev->struct_sem );
+ if ( priv->remove_auth_on_close == 1 ) {
+ drm_file_t *temp = dev->file_first;
+ while ( temp ) {
+ temp->authenticated = 0;
+ temp = temp->next;
+ }
+ }
+ if ( priv->prev ) {
+ priv->prev->next = priv->next;
+ } else {
+ dev->file_first = priv->next;
+ }
+ if ( priv->next ) {
+ priv->next->prev = priv->prev;
+ } else {
+ dev->file_last = priv->prev;
+ }
+ up( &dev->struct_sem );
+
+ if (dev->fn_tbl.free_filp_priv)
+ dev->fn_tbl.free_filp_priv( dev, priv );
+ DRM(free)( priv, sizeof(*priv), DRM_MEM_FILES );
+
+ /* ========================================================
+ * End inline drm_release
+ */
+
+ atomic_inc( &dev->counts[_DRM_STAT_CLOSES] );
+ spin_lock( &dev->count_lock );
+ if ( !--dev->open_count ) {
+ if ( atomic_read( &dev->ioctl_count ) || dev->blocked ) {
+ DRM_ERROR( "Device busy: %d %d\n",
+ atomic_read( &dev->ioctl_count ),
+ dev->blocked );
+ spin_unlock( &dev->count_lock );
+ unlock_kernel();
+ return -EBUSY;
+ }
+ spin_unlock( &dev->count_lock );
+ unlock_kernel();
+ return DRM(takedown)( dev );
+ }
+ spin_unlock( &dev->count_lock );
+
+ unlock_kernel();
+
+ return retcode;
+}
+
+/**
+ * Called whenever a process performs an ioctl on /dev/drm.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param cmd command.
+ * \param arg user argument.
+ * \return zero on success or negative number on failure.
+ *
+ * Looks up the ioctl function in the ::ioctls table, checking for root
+ * previleges if so required, and dispatches to the respective function.
+ */
+int DRM(ioctl)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ioctl_desc_t *ioctl;
+ drm_ioctl_t *func;
+ int nr = DRM_IOCTL_NR(cmd);
+ int retcode = 0;
+
+ atomic_inc( &dev->ioctl_count );
+ atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] );
+ ++priv->ioctl_count;
+
+ DRM_DEBUG( "pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n",
+ current->pid, cmd, nr, (long)old_encode_dev(dev->device),
+ priv->authenticated );
+
+ if ( nr >= DRIVER_IOCTL_COUNT ) {
+ retcode = -EINVAL;
+ } else {
+ ioctl = &DRM(ioctls)[nr];
+ func = ioctl->func;
+
+ if ( !func ) {
+ DRM_DEBUG( "no function\n" );
+ retcode = -EINVAL;
+ } else if ( ( ioctl->root_only && !capable( CAP_SYS_ADMIN ) )||
+ ( ioctl->auth_needed && !priv->authenticated ) ) {
+ retcode = -EACCES;
+ } else {
+ retcode = func( inode, filp, cmd, arg );
+ }
+ }
+
+ atomic_dec( &dev->ioctl_count );
+ if (retcode) DRM_DEBUG( "ret = %x\n", retcode);
+ return retcode;
+}
+
+/**
+ * Lock ioctl.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_lock structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Add the current task to the lock wait queue, and attempt to take to lock.
+ */
+int DRM(lock)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ DECLARE_WAITQUEUE( entry, current );
+ drm_lock_t lock;
+ int ret = 0;
+
+ ++priv->lock_count;
+
+ if ( copy_from_user( &lock, (drm_lock_t __user *)arg, sizeof(lock) ) )
+ return -EFAULT;
+
+ if ( lock.context == DRM_KERNEL_CONTEXT ) {
+ DRM_ERROR( "Process %d using kernel context %d\n",
+ current->pid, lock.context );
+ return -EINVAL;
+ }
+
+ DRM_DEBUG( "%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
+ lock.context, current->pid,
+ dev->lock.hw_lock->lock, lock.flags );
+
+ if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE))
+ if ( lock.context < 0 )
+ return -EINVAL;
+
+ add_wait_queue( &dev->lock.lock_queue, &entry );
+ for (;;) {
+ current->state = TASK_INTERRUPTIBLE;
+ if ( !dev->lock.hw_lock ) {
+ /* Device has been unregistered */
+ ret = -EINTR;
+ break;
+ }
+ if ( DRM(lock_take)( &dev->lock.hw_lock->lock,
+ lock.context ) ) {
+ dev->lock.filp = filp;
+ dev->lock.lock_time = jiffies;
+ atomic_inc( &dev->counts[_DRM_STAT_LOCKS] );
+ break; /* Got lock */
+ }
+
+ /* Contention */
+ schedule();
+ if ( signal_pending( current ) ) {
+ ret = -ERESTARTSYS;
+ break;
+ }
+ }
+ current->state = TASK_RUNNING;
+ remove_wait_queue( &dev->lock.lock_queue, &entry );
+
+ DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" );
+ if (ret) return ret;
+
+ sigemptyset( &dev->sigmask );
+ sigaddset( &dev->sigmask, SIGSTOP );
+ sigaddset( &dev->sigmask, SIGTSTP );
+ sigaddset( &dev->sigmask, SIGTTIN );
+ sigaddset( &dev->sigmask, SIGTTOU );
+ dev->sigdata.context = lock.context;
+ dev->sigdata.lock = dev->lock.hw_lock;
+ block_all_signals( DRM(notifier),
+ &dev->sigdata, &dev->sigmask );
+
+ if (dev->fn_tbl.dma_ready && (lock.flags & _DRM_LOCK_READY))
+ dev->fn_tbl.dma_ready(dev);
+
+ if (dev->fn_tbl.dma_quiescent && (lock.flags & _DRM_LOCK_QUIESCENT)) {
+ if (dev->fn_tbl.dma_quiescent(dev)) {
+ DRM_DEBUG( "%d waiting for DMA quiescent\n", lock.context);
+ return DRM_ERR(EBUSY);
+ }
+ }
+
+ if ( dev->fn_tbl.kernel_context_switch && dev->last_context != lock.context ) {
+ dev->fn_tbl.kernel_context_switch(dev, dev->last_context,
+ lock.context);
+ }
+
+ return 0;
+}
+
+/**
+ * Unlock ioctl.
+ *
+ * \param inode device inode.
+ * \param filp file pointer.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_lock structure.
+ * \return zero on success or negative number on failure.
+ *
+ * Transfer and free the lock.
+ */
+int DRM(unlock)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_lock_t lock;
+
+ if ( copy_from_user( &lock, (drm_lock_t __user *)arg, sizeof(lock) ) )
+ return -EFAULT;
+
+ if ( lock.context == DRM_KERNEL_CONTEXT ) {
+ DRM_ERROR( "Process %d using kernel context %d\n",
+ current->pid, lock.context );
+ return -EINVAL;
+ }
+
+ atomic_inc( &dev->counts[_DRM_STAT_UNLOCKS] );
+
+ if (dev->fn_tbl.kernel_context_switch_unlock)
+ dev->fn_tbl.kernel_context_switch_unlock(dev);
+ else
+ {
+ DRM(lock_transfer)( dev, &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT );
+
+ if ( DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT ) ) {
+ DRM_ERROR( "\n" );
+ }
+ }
+
+ unblock_all_signals();
+ return 0;
+}